What does 9999 mean on a METAR?

What does 9999 mean on a METAR?

The largest reportable metric value is 9999. This value represents a visibility greater than 9000 meters (7 SM or more). To convert visibility values from meters to statute miles see Attachment 3 on page 33 or see Flight Information Handbook conversion tables. 8. METAR.

What does a02 mean in a METAR?

automated station with precipitation discriminator

AO2. automated station with precipitation discriminator.

What is the difference between TAF and METAR?

A METAR report includes wind direction and speed, temperature, barometric pressure, and cloud cover. On the other hand, a TAF report provides the same weather information as a METAR, plus information relating to whether rapid, gradual or temporary change is expected in some of the meteorological conditions.

What does a METAR stand for?

Meteorological Terminal Air Report
Definition. Meteorological Terminal Air Report (METAR) – literally ‘Meteorological Terminal Air Report’ or more straightforwardly ‘Routine aerodrome meteorological report’

What does 8000 mean on a TAF?

GROUP 4: Visibility, Weather, and Obstructions to Vision:

What is the P in a METAR?

Precipitation amounts (in hundredths of inches) Hourly Precipitation Amount (P####)

What is the 8 * * * * Group on a METAR?

If the wind varies 60° or more, the direction will be indicated with a V (e.g. 120V190). Next two digits Mean speed and units (KT=knots, KMH=kilometers per hour, or MPS=meters per second).
…
TAF.

What does P mean on METAR?

Visibility greater than 6 miles has the prefix P (remember the use of P in the RVR numbers), so is coded as P6SM. Wind shear is indicated by WS, as in this portion of a TAF: 13012KT WS020/27055KT. This means surface winds from 130° @ 12 kts change to 270° @ 55 kts at 2000 ft.

How long is a METAR good for?

an hour
The METAR only gives you a small snapshot in time. They are only good for an hour. They are usually refreshed around 55 past the hour. TAFs, on the other hand, cover a 24 to 30 hour period and they are published 6 times a day (0000, 0600, 1200, 1800).

How many types of METAR are there?

Type of report—there are two types of METAR reports.
The first is the routine METAR report that is transmitted on a regular time interval. The second is the aviation selected SPECI.

How long is METAR valid for?

What does CB mean in a TAF?

Cumulonimbus clouds (CB) are the only cloud type forecast in TAFs. When the sky is obscured due to a surface-based phenomenon, vertical visibility (VV) into the obscuration is forecast.

What is the T at the end of a METAR?

The “0” after the “T” indicates that the temperature and dew point are higher than 0 degrees Celsius (a “1” will follow the “T” when the dew point temperature and /or the temperature is / are less than 0 degrees Celsius).

What does 60000 mean in a METAR?

for the record, six-hour totals appear at 00Z, 06z, 12Z and 18Z. Three-hour totals appear at 03Z, 09Z, 15Z and 21Z. 60000 translates to a trace of liquid precipitation during the three- or six-hour period. 70066 indicates the total 24-hour liquid precipitation ending at 12Z (in hundredths of an inch).

What does M mean on METAR?

An M in front of the number indicates that the temperature/dew point is below zero Celsius. Q1020 indicates the current altimeter setting (in QNH) is 1,020 hPa (30.12 inHg). NOSIG is an example of a TREND forecast which is appended to METARs at stations while a forecaster is on watch.

Why is METAR important?

Drone pilots are responsible for ensuring that the weather conditions are safe for flying. The FAA has established a minimum weather visibility of three miles from your control station. A METAR report can provide you with up-to-date weather information including overcast, misty, and rainy conditions.

What is the 5 * * * * Group on a METAR?

pressure tendency
53018 indicates the pressure tendency (the “5 group”). The digit following the “5”, which can vary from 0 to 8, describes the behavior of the pressure over the past three hours (for guidance, consult the table below). The last three digits represent the amount of pressure change in tenths of a millibar.

What does VV mean on METAR?

Vertical Visibility
VV. Vertical Visibility (Indefinite Ceiling)

How long is a METAR valid for?

How far does a METAR cover?

Practically speaking if the weather station is positioned well a METAR (like a TAF) is probably fairly representative of conditions within 5 miles, assuming there are no geographic features such as mountains which may mess with the weather.

What Does VC mean in a TAF?

VC In the Vicinity. Modifiers: – Light + Heavy P More than M Less than B Began E Ended.